Carbid-gas generator.



H. NASH.

CARBID GAS GENERATOR.

APPLICATION FILED APK.27. 1918.

1,291,604. Patented Jan. 14,1919.

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HARRY NASH, OF WILKES-BARBIE, PENNSYLVANIA.

CARBID-GAS GENERATOR.

Specification of Letters Patent.

Patented Jan. 14, 1919.

Application filed April 27, 1918. Serial No. 231,180.

To all whom it may concern:

Be it known that I, HARRY NASH, citizen of the United States, residing at Wilkes- Barre, in the county of Luzerne and State of Pennsylvania, have invented certaln new and useful Improvements in Carbid- Gas Generators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to gas producing apparatus, and more particularly to acetylene-gas generators. It is one of the objects of the present invention to provide an automatically acting apparatus of the type in which plural charges of carbid are contained in respective chambers, to which the flow of water is automatically controlled by the operation of the apparatus, it being one of the objects of the invention to control the admission of water in successive periods automatically during the operation of the apparatus, so that a substantially uniform production of gas is made possible, and the necessary manual attention eliminated and necessitating only the occasional chang ng of the carbid storage or containing device. A further object of the invention is to provide for the elfective distribution of the water which is admitted to the carbid chambers so as to insure the more uniform delivery of the water to the carbid in each of the cells, it being in this connection an ob ect of the invention to eliminate, as far as possible, the clogging of the discharge or delivery device utilized for conducting the water into the bottom of the charge of carbid.

With these and other objects in view as will be rendered manifest to those versed in the art, there is described in the following specification, one embodiment of the invention illustrated in the accompanying drawings, in which Figure 1 is a central vertlcal section through one form of gasometer.

Fig. 2 is a perspective view of the multicell carbid container or drawer.

Fig. 3 is a cross section through the carbid drum in the tank.

Fig. 4 is a cross section of the carb1d drawer showing in detail the distribution nozzle.

Obviously, my present improvements may be incorporated in acetylene-gas generators of various types and construction, one form of which is illustrated as comprising a well, tank, or other chamber 2 adapted to contain a body of water, into which there is inserted the inverted receiver or bell 3, in the form of a cylinder open at the lower end and closed at its upper ends and of slightly less diameter than the tank 2, the bell being provided with rollers 4 for guiding the vertical movement of the bell by engagement with suitable tracks or guides 5. Preferably, the gasometer of the present invention is of the type adapted for household or similar purposes, and is provided with a diametrically extending drum 6 located in the lower portion of the tank 2, one end of the drum extending from the tank and being provided with a suitable detachable head '7 and clamping means 8, whereby the open outer end of the drum may be hermetically closed after the insertion of a drawer 9 having a transverse section conforming to the section of the drum 6, and which is divided into a number of cells 10. The cells are adapted to be charged to a suitable height with a quantity of carbid indicated at 11, and each of the cells is provided with an inlet aperture 12 for water for the dissolution of the carbid, one of the features of my present invention being the arrangement of these apertures at different levels along the side of the drawer 9 for a purpose which will be hereinafter described, and an important feature of the invention resides in the provision of distributer pipes 13, one for each inlet aperture 12, these pipes being directed inwardly and downwardly and having horizontally and transversely extending distributing bases 14, each provided with a series of apertures 15. The object of this is to insure the distribution or delivery of the water to a considerable area of the carbid, and is also for the purpose of overcoming or reducing the tendency of the distributor to clog at the apertures through the dissolution of the carbid. x

In operation, when the attendant has filled the drawer 9 with carbid in each of its cells, he then removes the head 7 from the drum 6 which is fixed in the tank, inserts the drawer and readjusts and clamps the head in position over the end of the drum, after which a quantity of water may be admitted to the drum through means of a water-feeding device including a vertical seal chamber 16, having a pipe 17 at its lower end leading into the top of the drum 6, and at its upper end being open for the inflow of water which is delivered into the chamber 16 through a feeding pipe 18, shown as extending from the bottom of a basin 19 below a valve 20, having a stem 21 on the end of which is secured a pinion 22, which is adapted to be engaged by the adjacent rack 23, shown as attached by an arm 24 to a convenient portion of the bell 3, the rack 23 engaging the pinion 22 when the bell is in its lower position so as to open the valve 20 and permit the discharge of water to the water seal 16, and thence through the outlet pipe 17 to the drum. This water then accumulates inthe drum and will first pass into the lowermost aperture in the drawer 9, as clearly shown in Fig. 1, the water dissolving the carbid and producing acetylene-gas which rises from the drum 6 through a gas-pipe 25, at the upper end of which is a cup 26 in which is an inverted cup 27 the lower end of which is adapted to be immersed and covered by a quantity of water in the cup 26, the inverted cup 27 covering the upper open end of the gas pipe 25 so that gas passing from the latter is clirected downwardly and caused to rise through the water seal in the cup 26 and thence into the head of the bell 3, this being for the purpose of washing the gas rising from the drum 6,

As gas pressure accumulates beneath the bell 3, the latter is elevated, causing the automatic cutting ofi of the water supply at the valve 20 by the rack 23, mean-time gas being delivered from the bell 3 through a service pipe 28 opening above the water level in the tank 2 and passing through the latter into a gas scrubbing device 29 of any suitable construction and design from which the cleansed gas passes to the branch 30.

To avoid the generation of excessive pressure in the bell 3, an automatic safety is provided, and comprises a relief pipe 31 extending upwardly in the bell 3 above the level of the water in the tank 2, and being provided with a valve 32 at its upper end adapted to be opened automatically by a cam 33 which is secured to the inside of the bell 3 and is adapted to engage the lever 34 of the valve, so that the valve is open when the bell rises to a predetermined point and the p gas in excess is conducted away through the waste or safety pipe 31. As soon as the excess pressure is released, the bell descends, and in so doing, the cam 33 releases the valve which automatically closes.

From the above it will be seen that after one volume of gas has been generated from the charge of carbid in its cell, which is provided with the lowermost aperture, then, as the gas is used from the reservoir, the bell begins to fall, and the water supply valve 20 is automatically opened and additional water is admitted to the drum 6, in which it rises and will pass into the inlet aperture next in height above the lowest, whereby a fresh volume of gas will be generated from the charge of carbid in this particular cell; the bell will then again ascend, and then as the gas is drawn off for service, will fall and repeat the automatic opening of the valve 20, as above described, this operation being repeated a number of times equal to the number of charges of carbid in the drawer 9.

It will be seen that the only attention that the apparatus will require will be the occasional removal of the carbid drawer 9 and its cleansing and recharging, and then replacing in the drum 6, all of the other actions of the apparatus being automatic.

What I claim is:

1. In a carbid generator, a carbid container having a series of compartments each having an intake pipe in a diflerent horizontal plane from the others, the pipes opening at the side of the container so as to admit water at different heights into the container, each pipe turned downward in the receiver and having a perforated cross-pipe on its end.

2. In an automatic carbid generator, a carbid containing drawer provided with a plurality of independent cells, each having an aperture, the apertures being arranged in an inclined row, and water distributers for the apertures, said distributers having discharge nozzles at their lower ends, provided with a plurality of apertures for distributing the water throughout the bottom of the cells and for reducing the tendency of the carbid to clog the feed device.

In testimony whereof I affix my signature.

HARRY NASH.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents,

' Washington, D. G. 

